/*
 * Copyright 2017 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#ifndef SkSGEffectNode_DEFINED
#define SkSGEffectNode_DEFINED

#include "modules/sksg/include/SkSGRenderNode.h"

namespace sksg {
/* *
 * Base class for nodes which apply some transformation when rendering
 * their descendants.
 *
 * This includes transforms, clipping, filters, etc.
 */
class EffectNode : public RenderNode {
protected:
    explicit EffectNode(sk_sp<RenderNode>, uint32_t inval_traits = 0);
    ~EffectNode() override;

    void onRender(SkCanvas *, const RenderContext *) const override;
    const RenderNode *onNodeAt(const SkPoint &) const override;

    SkRect onRevalidate(InvalidationController *, const SkMatrix &) override;

    const sk_sp<RenderNode> &getChild() const
    {
        return fChild;
    }

private:
    sk_sp<RenderNode> fChild;

    using INHERITED = RenderNode;
};
} // namespace sksg

#endif // SkSGEffectNode_DEFINED
